a little glass banging here, a little kok rubbing there, maybe some magnet algae scraper chasing?
http://www.youtube.com/watch?v=ZfH8Yk98B08
http://www.youtube.com/watch?v=7aZa5pLTfS4
if someone wants to embed these for me, don't be shy
he doesn't bite, not unless your hands all the way...